Double-disk drill.



PATENTED SEPT. 12, 1905.

H. J. CASE.

DOUBLE DISK DRILL.

APPLICATION FILED SEPT. 6,1904.

mam a mum :0, wow (mew-mews wxsrwcr'u c c UNITED STATES PATENT @FFICE'HENRY J. CASE, OF ()UXSCO, NEW YORK. ASSIUNOR TO INlEltNAllONALHARVESTER COMPANY, OF CHICAGO, lLlJlNOIS, A C()l{ I ()ltAll( )N OF NEYVJERSEY.

DOUBLE-DISK DRILL.

Specification of Letters Patent.

Application filed September 6, 1904. Serial No. 223,313.

No. 799,143. Patented Sept. 12, 1905.

1'0 all 2071,07)! it may mlwcrn: against the bearing, the bridge-pieee'7 pre- Be it known that l, HENRY J. CASE, a citiventing any accidentalturning of the axle. zen of the United States, residing at the town Thesupport 1 is provided with an oil-conof Owasco, in the county of Cayugaand State duit 13, leading to an opening at the upper 5 of New York,have invented certain new and side of the axle, through which the oildeuseful Improvements in Double-Disk Drills, scends to the interior ofthe axle and flows of which the following is a specification,refthroughtheoriiiccs in the journals to the disk-' erence being had tothe accompanying drawbearings. ings, forming a part thereof. For thepurpose of attaching the scraper 10 My invention relates to improvementsin devices for cleaning both the inner and outer double-disk drills, theobject of the invention surfaces of the disks the support 1 is providedbeing to provide improved bearings for the with projectinglugs let and15. Luglaisprodisks and improved scrapers for cleaning the vided with aconvex seat 16, and 17 isadoubleinner and outer-surfaces of the disks,and, furended U-shaped sheet-steel scraper shaped at 5 ther, to providebearings for the disks that its diverging ends to conform with theopposare separable from the main support and are ing disk-surfaces. Thedouble scraper is held readily attached or detached therefrom, soagainst the convex surface of thelugby means that when worn or brokenthe bearings may of a bolt and an intervening washer 18, havbe replacedby new parts. ing a concave side opposed to the convex sur- 20 1Viththese objects in view the invention face of the lug, the operation ofthe parts beconsists in certain novel features of construcing such as tocause the diverging wings of tion and combination and arrangement of thescraper to press against the disks as the parts, as will be more fullyhereinafter debolt is tightened with a yielding force. The scribed.scrapers 19 for the outside of the disks are 5 In the drawings, Figure 1is a view in side approximatelytriangular in shape, having oneelevation,illustrating myimprovements. Fig. corner bent at right anglesto the body por- 2 is a rear view of Fig. 1. Fig. 3 is a section andprovided with two holes for the intional view of a part of Fig. 2 online 3. Fig. sertion of the holding means--one in the body 4 isasectional view of a part of Fig. 3 on line portion and the other in theturned-up por- 3 4., and Figs. 5 and 6are details of the scraper tion,as shown in Fig. 6.

devices. The holding means consistof a single piece Likereference-numerals represent like of wire having its opposite ends bentin L parts throughout the various views. shape and adapted to receivethe scrapers, as 1 represents the disk-support having the shown in Fig.2. The wire is formed with 35 seed-tube 2 and the arm 3, to which theusual an open coil 20 at its central portion and then drag-bar may beattached. At the bottom of bent in the shape of an inverted U, havingits the support there is a semicircular seat or legs 21 convergingtoward each other. The bearing 1, adapted to receive a double-disk opencoil is seated in a convex groove 22, axle 5, having an enlarged centralportion formed in the convex surface of the lug por- 4 andoppositely-disposed journals at an angle tion 15 of the support 1, and aclamp-plate 23, with each other, upon which the disks are havingameeting-concavesurfaceandgooove, mounted. Theaxle 5 hasa peripheralgroove is secured above the wire in a manner to hold 6 around itscentral portion and a bridgethe wire from displacement. Upon oppositepiece 7 across the groove that fits into a seat sides of the lug portion15 are projecting arms 45 in the semicircular bearing 4:, as shown inFig. 24, having notches at their ends to receive the 3. Below thebearing there is formed on the upper ends of the legs of thescraper-hohtling support 1 a projecting earpiece 8, adapted to devicefor the purpose of assisting to maintain I00 receive the eye 9 of acurved eyebolt 10, that it in proper position relative to the disks. hasits upper end threaded and passed through By the means provided thescrapers are 5 an earpiece 11 above the semicircular bearyieldingly heldin contact with the disks in a ing et and receives a nut 12, which beinglateral direction and are free to turn on the tightened serves to drawthe curved bolt into wires to a limited extent in following any un- 5the groove in the axle-piece and clamp it evenness of the disk-surface.

What I claim, and desire to secure by Letters Patent, is

. 1. In a grain-drill, the combination of furrow-opening disks, ascraper device having oneside bent at approximately right angles withthe body portion, an opening in the bent side and also in the bodyportion and a holding means comprising a spring-Wire suitably supportedadjacent'to the disk and having its end formed to sustain the scraper byengaging With the openings therein.

2. In a grain-d rill, the combination of a disksupport, furrow-openingdisks mounted upon opposite sides thereof, a scraper-holding devicecomprising a single wire having an open coil at itscenter,oppositely-disposed arm portions and depending leg portions,scrapers mounted on the leg portions, the Whole being held in operativeposition relative to the disks.

3. In a grain-drill, the combination of a disksupport, furrow-openingdisks mounted upon opposite sides thereof, a scraper-holding devicecomprising a single Wire having an open coil at its center.oppositely-disposed arm portions and depending leg portions, scrapersmounted on the leg portions, the whole being held in operative positionrelative to the disks by having the open coil secured to thedisksupport.

4. In agrain-drill, the combination of a disk.- support, furrow-openingdisks mounted upon opposite sides thereof, a scraper-holding devicecomprising a single Wire having an open coil at its center,oppositely-disposed arm portions and depending leg portions, scrapersmounted on the leg portions, the said disksupport being provided with arearwardlyprojecting lug portion adapted to receive the upper side ofthe said open coil. and laterallyprojecting Wing portions notched toreceive the leg portions of said holding device, and means for securingsaid open coil to said lug portion.

In Witness whereof 1 hereto aflix my signature in presence of twoWitnesses.

HENRY J. CASE.

Witnesses:

LUD. HOLLAND-LETZ, H. (J. 'BUFFINGTON.

